| 摘要 |
PROBLEM TO BE SOLVED: To provide an X-ray generating device cooling system cooling an X-ray tube or an anticathode of the X-ray tube by circulating cooling water, from which, the X-ray tube or the anticathode can be simply and safely removed from a cooling water piping, for maintenance, change of wave length or the like. SOLUTION: Three way valves 41, 42 switching and connecting pump side flow passage pipes 31, 34 to a flow passage pipes at X-ray tube 20 side and a bypass flow passage pipe 35 are interposed in the middle part at forward flow passage side and backward flow passage side of forward and backward flow passage pipes 31 to 34 respectively, and an aspirator 36 is arranged in the middle of the bypass flow passage pipe 35. A suction port of the aspirator is jointed to the X-ray tube side flow passage pipes 32, 33, further, a check valve leading outside air in the pipes 32, 33 when the pressure in the X-ray tube side flow passage pipe 32 becomes negative, is arranged on the pipe 32. COPYRIGHT: (C)2006,JPO&NCIPI
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